模組化寫法

C:\ccc\ws107a\example\02-npm\03-module>npm run example

> ccclodash@0.0.1 example C:\ccc\ws107a\example\02-npm\03-module
> node example/chunkEx.js

_.chunk(['a', 'b', 'c', 'd'], 2)= [ [ 'a', 'b' ], [ 'c', 'd' ] ]